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Finding the Fourth Proportional to 723,609.96, 998,514.72 and 401,314.20

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Solution

The fourth proportional to 723,609.96, 998,514.72 and 401,314.20 is: 553,776.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,609.96 : 998,514.72 = 401,314.20 : x
  2. Step 2: Convert to fraction form
    723,609.96/998,514.72 = 401,314.20/x
  3. Step 3: Cross multiply
    723,609.96x = 998,514.72 × 401,314.20
  4. Step 4: Simplify right side
    723,609.96x = 400,718,136,045.02
  5. Step 5: Solve for x
    x = 400,718,136,045.02/723,609.96
  6. Step 6: Final answer
    x = 553,776.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.